System Sensor PA400B+PS24LO Category : System Sensor The horn’s model is PA400B, the strobe’s model is PS24LO.
EST 882-2B Category : EST/EdwardsThis unit has an electronic horn rather than an electromechanical mechanism.
STI SS-2000F Category : OtherCan’t remember where exactly I put the key for this unit. It can still open with an allen wrench, but...